We have just completed a pilot implementation of Moodle 1.7+ and page loading appears to be getting slower all the time. We had 120 students, 12 teachers and 10 courses using Moodle during a 4 month period. The numbers will double the next semester.
I have no direct access to the server running Moodle and have to go through the IT Manager for all changes. I have already carried out all the suggestions in the Moodle Admin settings section at: http://docs.moodle.org/en/Performance.
Here is some information that might help:
Platform and config details on which Moodle is now running:
Windows2000 / P4 630, SATA Raid 300GB HDD, 512 MB DDR2.
PHP version 5.1.4
249804 *free* RAM is displayed in task manager.
Page file usage displayed in task manager: 53020
Max_connections set to for mysql (my.ini): 16384 (default)
Values of ThreadsPerChild and MaxRequestsPerChild in apache2/conf/httpd.conf:
ThreadsPerChild 250 (default)
MaxRequestsPerChild 0 (default)